609312319 has 12 divisors (see below), whose sum is σ = 765418192. Its totient is φ = 474788160.

The previous prime is 609312299. The next prime is 609312367. The reversal of 609312319 is 913213906.

It is not a de Polignac number, because 609312319 - 2⁵ = 609312287 is a prime.

It is a super-2 number, since 2×609312319² = 742523004170315522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609342319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 358842 + ... + 360535.

Almost surely, 2^609312319 is an apocalyptic number.

609312319 is a deficient number, since it is larger than the sum of its proper divisors (156105873).

609312319 is a wasteful number, since it uses less digits than its factorization.

609312319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719406 (or 719395 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 609312319 is about 24684.2524496895. The cubic root of 609312319 is about 847.7737911039.

The spelling of 609312319 in words is "six hundred nine million, three hundred twelve thousand, three hundred nineteen".